*{
    margin: 0;
    padding: 0;
    list-style: none;
}
$width:1200px;
$color:#f7f8f9;
.head{
    width: $width;
    height: 50px;
    background-color: skyblue;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    .head-left{
        width: 300px;
        height: 50px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        img{
            width: 50px;
            height: 50px;
            border-radius: 50%;
        }
        span{
            font-size: 30px;
        font-family: '隶书';
        }
    }
    .head-right{
        width: 600px;
        ul{
            display: flex;
            justify-content: space-evenly;
            align-items: center;
            li{
                font-size: 18px;
                cursor: pointer;
                color: $color;
            }
            li:hover{
                color: green;
            }
        }
    }
}
.banner{
    display: flex;
    justify-content: center;
    align-items: center;
    img{
        width: $width;
    }
}
@mixin imges {
    width: 290px;
    height: 290px;
    margin-top: 10px;
}
.imgs{
    width: $width;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    img{
        @include imges()
    }
}
.footer{
    height: 50px;
    margin-top: 20px;
    background-color: #ccc;
    display: flex;
    justify-content: center;
    align-items: center;
    p{
        font-size: 12px;
        color: $color;
    }
}